Finding the Fourth Proportional to 9,306,665,111.05, 12,843,180,363.81 and 5,077,579,864.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,306,665,111.05 : 12,843,180,363.81 = 5,077,579,864.48 : x
2. Step 2: Convert to fraction form
   9,306,665,111.05/12,843,180,363.81 = 5,077,579,864.48/x
3. Step 3: Cross multiply
   9,306,665,111.05x = 12,843,180,363.81 × 5,077,579,864.48
4. Step 4: Simplify right side
   9,306,665,111.05x = 65,212,274,011,166,564,352
5. Step 5: Solve for x
   x = 65,212,274,011,166,564,352/9,306,665,111.05
6. Step 6: Final answer
   x = 7,007,050,671.00